CN208816162U - A kind of main liquid back pipe of working surface hydraulic support - Google Patents
A kind of main liquid back pipe of working surface hydraulic support Download PDFInfo
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- CN208816162U CN208816162U CN201820936000.6U CN201820936000U CN208816162U CN 208816162 U CN208816162 U CN 208816162U CN 201820936000 U CN201820936000 U CN 201820936000U CN 208816162 U CN208816162 U CN 208816162U
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- fixedly connected
- main liquid
- liquid back
- connector
- sliding sleeve
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Abstract
The utility model discloses a kind of main liquid back pipes of working surface hydraulic support, including consistent lubricant pipe and hard oil pipe, the lower end fixation of the consistent lubricant pipe is communicated with connector sleeve, the lower part of the support rod is fixedly connected with slide bar, the lower end sliding plug of the slide bar has flap, the first spring is socketed on the slide bar, the inside of the connector sleeve is fixedly connected with the valve seat with flap cooperation, the lower part of the valve seat is communicated with one end and is in sealing structure and hollow cylindrical drum, sliding sleeve is connected to sliding sleeve in the cylindrical drum, through-hole is offered on the lower part circular arc of the cylindrical drum, the lower part of the sliding sleeve is fixedly connected with mandril.The present apparatus constitutes a check valve, and when being dismantled, the oil in main liquid back pipe will not be leaked, and avoids waste；The valve for automatically forming a closing when being dismantled, in connector sleeve simultaneously, prevents the oil in main liquid back pipe from leaking；And during installation, mandril can jack up sliding sleeve, open valve.
Description
Technical field
The utility model relates to hydraulic support technical field, specially a kind of main liquid back pipe of working surface hydraulic support.
Background technique
Hydraulic support is a kind of set using fluid pressure generation support force and the automatic shifting of realization to carry out roof timbering and pipe
A kind of hydraulic power unit of reason, is the indispensable corollary equipment of comprehensive mechanical coal mining.Hydraulic support is mainly used for level
The longwall full-mechanized mining technique working face that face and gently inclined thick coal seam less than or equal to 10 degree are exploited along Sub-Level Caving mining full height of bottom plate, is also fitted
For severe inclined thick coal seam horizontal slice caving fully mechanized face.
When hydraulic support overhauls at present, the hydraulic support on working face is easy to be lost emulsion when carrying out dismantling pipeline,
It causes largely to waste.It would therefore be desirable to propose a kind of main liquid back pipe of working surface hydraulic support for reducing waste.
Utility model content
The purpose of this utility model is to provide a kind of main liquid back pipes of working surface hydraulic support, pass through tearing open in main liquid back pipe
It unloads on a little, installs check valve and controlled valve additional, prevent oily leakage, and easy to use, it is mentioned above in the background art to solve
Problem.
To achieve the above object, the utility model provides the following technical solutions: a kind of main liquid back pipe of working surface hydraulic support,
Including consistent lubricant pipe and hard oil pipe, the lower end fixation of the consistent lubricant pipe is communicated with connector sleeve, and the inside of the connector sleeve is fixedly connected
There is support rod, the lower part of the support rod is fixedly connected with slide bar, and the lower end sliding plug of the slide bar has flap, the slide bar
On be socketed with the first spring, the inside of the connector sleeve is fixedly connected with the valve seat with flap cooperation, and the lower part of the valve seat connects
It is connected with one end and is in sealing structure and hollow cylindrical drum, sliding sleeve is connected to sliding sleeve in the cylindrical drum, and is socketed in cylindrical drum
Second spring offers through-hole on the lower part circular arc of the cylindrical drum, and the lower part of the sliding sleeve is fixedly connected with mandril, described hard
The upper end fixation of oil pipe is communicated with connector, and the connector is threadedly coupled with connector sleeve.
Preferably, offer internal screw thread inside the lower end of the connector sleeve, the upper outside of the connector offer with
The external screw thread of screw-internal thread fit.
Preferably, the through-hole is at least provided with six groups, and six groups of through-holes are in equal on the sustained height circular arc of cylindrical drum
Even distribution.
Preferably, the mandril is provided with three groups, and three groups of mandrils are arranged in the lower part of sliding sleeve in uniform, and mandril is set
It sets in the surface of connector upper edge.
Preferably, the upper end of first spring is fixedly connected on support rod, and the lower end of the first spring is fixedly connected
On flap.
Preferably, the upper end of the second spring is fixedly connected on valve seat, and the lower end of second spring is fixedly connected on
On sliding sleeve.
Preferably, the internal slide clearance fit in the outside of the sliding sleeve and connector sleeve, the inside of the sliding sleeve and cylinder
The internal slide clearance fit of cylinder.
Compared with prior art, the utility model has the beneficial effects that
1, it by the design of valve seat, flap and the first spring, constitutes a check valve and is led back when being dismantled
Oil in liquid pipe will not leak, and avoid waste；
2, by the design of sliding sleeve, cylindrical drum, second spring and mandril, when being dismantled, automatic shape in connector sleeve
The valve closed at one, prevents the oil in main liquid back pipe from leaking；Simultaneously when being installed and used, the effect of connector
Under, mandril can jack up sliding sleeve, open valve, easy to use.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model sliding sleeve；
Fig. 3 is the structural schematic diagram of the utility model cylindrical drum.
In figure: 1 consistent lubricant pipe, 2 support rods, 3 slide bars, 4 valve seats, 5 cylindrical drums, 6 through-holes, 7 external screw threads, 8 connectors, 9 hard oils
Pipe, 10 connector sleeves, 11 first springs, 12 flaps, 13 second springs, 14 sliding sleeves, 15 mandrils, 16 internal screw threads.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of technical solution referring to FIG. 1-2: the main liquid back pipe of the working surface hydraulic support, including
Consistent lubricant pipe 1 and hard oil pipe 9, the lower end of the consistent lubricant pipe 1 is fixed to be communicated with connector sleeve 10, and the inside of the connector sleeve 10 is fixed to be connected
It is connected to support rod 2, the lower part of the support rod 2 is fixedly connected with slide bar 3, and the lower end sliding plug of the slide bar 3 has flap 12,
The first spring 11 is socketed on the slide bar 3, the inside of the connector sleeve 10 is fixedly connected with the valve seat 4 cooperated with flap 12,
The lower part of the valve seat 4 is communicated with one end and is in sealing structure and hollow cylindrical drum 5, and sliding sleeve is connected to cunning in the cylindrical drum 5
Set 14, and second spring 13 is socketed in cylindrical drum 5, through-hole 6, the sliding sleeve are offered on the lower part circular arc of the cylindrical drum 5
14 lower part is fixedly connected with mandril 15, and the upper end of the hard oil pipe 9 is fixed to be communicated with connector 8, the connector 8 with connect
Set 10 is threadedly coupled.
Specifically, offering internal screw thread 16 inside the lower end of the connector sleeve 10, the upper outside of the connector 8 is opened up
There is the external screw thread 7 cooperated with internal screw thread 16, be threadedly coupled, dismantles easy for installation.
Specifically, the through-hole 6 is at least provided with six groups, and six groups of through-holes 6 are on the sustained height circular arc of cylindrical drum 5
It is uniformly distributed, for six groups of through-holes 6 on sustained height, sliding sleeve 14 is moved to 6 outside of through-hole under the action of second spring 13, can
Valve is formed to block through-hole 6.
Specifically, the mandril 15 is provided with three groups, three groups of mandrils 15 are arranged in the lower part of sliding sleeve 14 in uniform, and
The surface of 8 upper edge of connector is arranged in mandril 15, and moving up and down for mandril 15 can drive sliding sleeve 14, can be used as
The on & off switch of controlled valve.
Specifically, the upper end of first spring 11 is fixedly connected on support rod 2, and the lower end of the first spring 11 is fixed
It is connected on flap 12, the first spring 11 drives flap 12 to serve as check valve.
Specifically, the upper end of the second spring 13 is fixedly connected on valve seat 4, and the fixed company in lower end of second spring 13
It connects on sliding sleeve 14, second spring 13 can be resetted, so that sliding sleeve 14 blocks through-hole 6.
Specifically, the internal slide clearance fit in the outside of the sliding sleeve 14 and connector sleeve 10, the inside of the sliding sleeve 14
It is less than 0.2mm with the gap of the internal slide clearance fit of cylindrical drum 5, clearance fit, prevents oil leak.
Working principle: when in use, by the design of valve seat 4, flap 12 and the first spring 11, one is constituted unidirectionally
Valve, when being dismantled, the oil in main liquid back pipe will not be leaked, and be avoided waste；Pass through sliding sleeve 14, cylindrical drum 5, the second bullet
The design of spring 13 and mandril 15 automatically forms the valve of a closing, prevents from leading back liquid when being dismantled in connector sleeve 10
Oil in pipe leaks；Simultaneously when being installed and used, under the action of connector 8, mandril 15 can jack up sliding sleeve 14, beat
Valve opening door, it is easy to use.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of main liquid back pipe of working surface hydraulic support, including consistent lubricant pipe (1) and hard oil pipe (9), it is characterised in that: the consistent lubricant
The lower end fixation of pipe (1) is communicated with connector sleeve (10), and the inside of the connector sleeve (10) is fixedly connected with support rod (2), described
The lower part of support rod (2) is fixedly connected with slide bar (3), and the lower end sliding plug of the slide bar (3) has flap (12), the slide bar
(3) it is socketed on the first spring (11), the inside of the connector sleeve (10) is fixedly connected with the valve seat with flap (12) cooperation
(4), the lower part of the valve seat (4) is communicated with one end in sealing structure and hollow cylindrical drum (5), sliding on the cylindrical drum (5)
It is dynamic to be socketed with sliding sleeve (14), and second spring (13) are socketed in cylindrical drum (5), it is opened on the lower part circular arc of the cylindrical drum (5)
Equipped with through-hole (6), the lower part of the sliding sleeve (14) is fixedly connected with mandril (15), the fixed connection in the upper end of the hard oil pipe (9)
Have connector (8), the connector (8) is threadedly coupled with connector sleeve (10).
2. the main liquid back pipe of a kind of working surface hydraulic support according to claim 1, it is characterised in that: the connector sleeve (10)
Lower end inside offer internal screw thread (16), the upper outside of the connector (8) offers outer with internal screw thread (16) cooperation
Screw thread (7).
3. the main liquid back pipe of a kind of working surface hydraulic support according to claim 1, it is characterised in that: the through-hole (6) is extremely
It is provided with six groups less, and six groups of through-holes (6) are evenly distributed on the sustained height circular arc of cylindrical drum (5).
4. the main liquid back pipe of a kind of working surface hydraulic support according to claim 1, it is characterised in that: the mandril (15) sets
It installs and is equipped with three groups, three groups of mandrils (15) are arranged in the lower part of sliding sleeve (14) in uniform, and mandril (15) is arranged in connector (8)
The surface of upper edge.
5. the main liquid back pipe of a kind of working surface hydraulic support according to claim 1, it is characterised in that: first spring
(11) upper end is fixedly connected on support rod (2), and the lower end of the first spring (11) is fixedly connected on flap (12).
6. the main liquid back pipe of a kind of working surface hydraulic support according to claim 1, it is characterised in that: the second spring
(13) upper end is fixedly connected on valve seat (4), and the lower end of second spring (13) is fixedly connected on sliding sleeve (14).
7. the main liquid back pipe of a kind of working surface hydraulic support according to claim 1, it is characterised in that: the sliding sleeve (14)
The internal slide clearance fit in outside and connector sleeve (10), between the inside of the sliding sleeve (14) and the internal slide of cylindrical drum (5)
Gap cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820936000.6U CN208816162U (en) | 2018-06-18 | 2018-06-18 | A kind of main liquid back pipe of working surface hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820936000.6U CN208816162U (en) | 2018-06-18 | 2018-06-18 | A kind of main liquid back pipe of working surface hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208816162U true CN208816162U (en) | 2019-05-03 |
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ID=66269810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820936000.6U Active CN208816162U (en) | 2018-06-18 | 2018-06-18 | A kind of main liquid back pipe of working surface hydraulic support |
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| CN (1) | CN208816162U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110610043A (en) * | 2019-09-10 | 2019-12-24 | 辽宁工程技术大学 | Method for calculating damage depth of inclined coal seam goaf bottom plate |
-
2018
- 2018-06-18 CN CN201820936000.6U patent/CN208816162U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110610043A (en) * | 2019-09-10 | 2019-12-24 | 辽宁工程技术大学 | Method for calculating damage depth of inclined coal seam goaf bottom plate |
| CN110610043B (en) * | 2019-09-10 | 2022-11-11 | 辽宁工程技术大学 | Method for calculating damage depth of inclined coal seam goaf bottom plate |
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